Prologue: Waking up

Year 4869, in the Astral Era, where humans have evolved and have been taken over by strange beings. Since that day, humans became nothing more than mere slaves, prisoners or food for the races. The humans had all lost there minds and gave in. All except a selected few humans who even though serving no purpose to the strange race, were feared that they would manage to gain power. So they were slaughtered. Slave Zero, one of the smartest humans attempted to run away but all was futile as a laser beam, followed by a hole through his skull was all that was left of him.

Being in a dark void, Zero's soul lingered and lingered for what seemed to him as years, millenniums even. Strangely enough, he began to feel pain. In his chest and his leg. But how? He was a soul after that. 

That's when something clicked in his head.

Transmigration.

This was something the people of the modern era talked of and even though forgotten, Zero studied their history. 

Basically, it would occur when a human meant for a different realm died. Their soul would be carried across many dimensions and different timelines to fulfill their goal.

Suddenly, Zero heard a voice he had never heard before. "Wake up stupid," The voice taunted him and caused him to wake up with a surprised face. 

He only saw a doctor… But the doctor looked at him with eyes of pity, as if the doctor had seen him in conditions worse that this. 

Zero now in the body of a patient named Rei decided to run his eyes to see clearly and saw the world full of colour. Suddenly, a painstaking headache hit him and caused him to faint.